This book is the result of the work of a group of Law and Economics professors, mostly from the Universidad Nacional de Educación a Distancia (UNED), within the scheme of the Network of Educational Innovation as convened by the UNED in the academic year of 2015/2016. The particular Project that has been developed in the mentioned call and reflected in this book is named -Practical Aplication of theoretical knowledge in Law and Economics: A Bilingual and Interdisciplinary Approach-. So once the theoretial analysis and explanation of both legal and economic issues was accomplished, we have completed the training path by providing practical approach.